打开所要查看的应用包名：

$ adb shell dumpsys activity top | head -n 10
TASK com.ss.android.article.news id=5
  ACTIVITY com.ss.android.article.news/com.ss.android.article.base.activity.DetailActivity 4407b468 pid=2714
    Local FragmentActivity 42df3028 State:
      mCreated=truemResumed=true mStopped=false mReallyStopped=false
      mLoadersStarted=true
    FragmentManager misc state:
      mActivity=com.ss.android.article.base.activity.DetailActivity@42df3028
      mContainer=android.support.v4.app.FragmentActivity$2@4231e9a0
      mCurState=5 mStateSaved=false mDestroyed=false
    View Hierarchy:

这里拿今日头条做样例能够看到它的包是com.ss.android.article.news，就无需反编译去看manifast.xml来找到其相应的包名了。

查看分辨率：

$adb shell dumpsys window | grep "ShownFrame" | head -n 1
mHasSurface=true mShowFrame=[0.0,0.0] [720.0,1280.0]

能够看到这里显示的分辨率为720x1280，这里也能够通过程序来获取。